<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <!-- 当做a标签使用 -->
    <a href="http://www.bing.com" target="_blank">BING</a>
    <form name="f1" action="http://www.bing.com" target="_blank">
      <button type="submit">BING</button>
    </form>
    <script>
      const form = document.f1;
    </script>
  </body>
</html>
